The subject of this vote was passage of legislation which would ban a medical procedure known as a late term (or "partial birth") abortion. Since the U.S. Supreme Court granted abortion rights to women in its landmark 1973 case of Roe v. Wade, social conservatives have lobbied Congress to enact restrictions on those rights. With the GOP now in control of the House, Senate, and the White House, passage of the legislation appears inevitable. However, the ban on late term abortions will no doubt be the subject of a legal challenge in the U.S. Supreme Court. In 2000, the high court ruled that a Nebraska law banning late term abortions was unconstitutional; Progressives and other pro-choice lawmakers hope the current legislation will similarly be struck down. Progressives voted in opposition to the late term abortion ban because, in their view, the proposal violates a woman's right to choose whether or not to have an abortion, is in conflict with the Supreme Court's 1973 ruling on abortion rights, and is therefore unconstitutional. Despite Progressives' opposition, the late term abortion ban was adopted by the House on a 282-139 vote.